diff -Naur libhugetlbfs-2.16/elflink.c libhugetlbfs-2.16.new//elflink.c
--- libhugetlbfs-2.16/elflink.c	2017-11-09 20:30:38.000000000 -0500
+++ libhugetlbfs-2.16.new//elflink.c	2017-11-09 22:36:56.000000000 -0500
@@ -1131,7 +1131,10 @@
 		start = ALIGN_DOWN((unsigned long)seg[i].vaddr, hpage_size);
 		offset = (unsigned long)(seg[i].vaddr - start);
 		mapsize = ALIGN(offset + seg[i].memsz, hpage_size);
-		mmap_flags = MAP_SHARED|MAP_FIXED;
+		if(__hugetlb_opts.share_mapping)
+				mmap_flags = MAP_SHARED|MAP_FIXED;
+		else
+				mmap_flags = MAP_PRIVATE|MAP_FIXED;
 
 		/* If requested, make no reservations */
 		if (__hugetlb_opts.no_reserve)
diff -Naur libhugetlbfs-2.16/hugeutils.c libhugetlbfs-2.16.new//hugeutils.c
--- libhugetlbfs-2.16/hugeutils.c	2013-03-09 21:59:52.000000000 -0500
+++ libhugetlbfs-2.16.new//hugeutils.c	2017-11-09 22:36:45.000000000 -0500
@@ -387,6 +387,12 @@
 	env = getenv("HUGETLB_NO_RESERVE");
 	if (env && !strcasecmp(env, "yes"))
 		__hugetlb_opts.no_reserve = true;
+
+	/* Determine if data segment share memory mapping */
+	__hugetlb_opts.share_mapping = false;
+	env = getenv("HUGETLB_SHAREMAPPING");
+	if (env && !strcasecmp(env, "yes"))
+		__hugetlb_opts.share_mapping = true;
 }
 
 void hugetlbfs_setup_kernel_page_size()
diff -Naur libhugetlbfs-2.16/libhugetlbfs_internal.h libhugetlbfs-2.16.new//libhugetlbfs_internal.h
--- libhugetlbfs-2.16/libhugetlbfs_internal.h	2013-03-09 21:59:52.000000000 -0500
+++ libhugetlbfs-2.16.new//libhugetlbfs_internal.h	2017-11-09 22:35:53.000000000 -0500
@@ -73,6 +73,7 @@
 	char		*def_page_size;
 	char		*morecore;
 	char		*heapbase;
+	bool		share_mapping;
 };
 
 /*